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Finding the Fourth Proportional to 72,370.26, 108,509.22 and 42,797.16

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Solution

The fourth proportional to 72,370.26, 108,509.22 and 42,797.16 is: 64,168.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,370.26 : 108,509.22 = 42,797.16 : x
  2. Step 2: Convert to fraction form
    72,370.26/108,509.22 = 42,797.16/x
  3. Step 3: Cross multiply
    72,370.26x = 108,509.22 × 42,797.16
  4. Step 4: Simplify right side
    72,370.26x = 4,643,886,449.82
  5. Step 5: Solve for x
    x = 4,643,886,449.82/72,370.26
  6. Step 6: Final answer
    x = 64,168.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.